Wooden Display Box with Glass Top, but Glass Broke?

I don't understand your trouble. Our home improvement stores (Home Depot, Lowe's, Square D, ...) have plexiglass in many sizes and thicknesses; it should be simple to cut a piece to the desired size ... if you have the right tools, such as a table saw and a blade for plastic. If not, there ought to be a framing shop that will cut a piece to size for you; if not, try the glass shops that supply the framing shops (which is what we use). This isn't a difficult task; where are you getting blocked? Also, the craft shops generally carry display boxes, but you didn't describe it well enough for me to suggest anything.

1. How to check if DISPLAY is valid

If :0 ever was a valid display, the process, i.e. xserver providing it, would be owned by root. Whatever you mean by valid.If you want to know if you can connect to an xserver, I would suggest to use xlsclients to connect to that display. If the command can connect it will return 0, if it can not it will return 1.X does not work in a manner that one user connects once to one xserver. To tie users to xsessions you must look at the programs connected to the xserver. Windowmanagers are good candidates for that, b/c there can be only one (active) windowmanager at any time. You can also track process relationships (parent,child) starting from your display manager. However, it's never trivial. Maybe display managers store this information somewhere, but that I would not know.

2. Should men wear tights or pantyhose?

You can wear whatever you want. If you like how they look on you then by all means wear them, who cares about what others think. Just be aware that most people will probably make comments about it. I guess a lot of it depends on how you are wearing them. ..under pants or are you putting them on display for all to see. People used to gawk at women wearing pants in the early 1900's now it is commonplace. Maybe you will be another fashion trailblazer.

3. No display with new video card?

Your Graphics Card might be getting a bit hungry with the memory, maybe going into the BIOS and reducing how much it eats could sort it, but I would put my money on 'ServicePack2', i had this 'crock of ****' on an old system and iI had nothing but problems. "You can not do this" and "You can not do that" or sometimes just nothing at all, hope this helps :)

4. Compute and Display Engineering Information

This is a pretty incomplete code example, but let me give you some initial thoughts:Since you know have complete class information, I have updated my answer to give more specific review comments on your code below. My comments are within multi-line comments

5. How much can I blow up a photo that is 5184x3456 pixels, 360 pixels per inch?

How close up are you talking about? A 3x5 foot print is normally going to be viewed from several feet away. The only people who look at them close up are curmudgeonly pixel-peepers. There's no pleasing them any way. I have an 8 megapixel shot from a Canon 20D blown up to 3x5 feet and on display in an aquarium. When viewed from the expected distance it looks just fine. So blow your shot up as large as you want

6. Connect display over network

Any network-based display system will include high amounts of lag. This is the nature of the differences between connections used internally to a computer and between it's various components and the connections used in networking: They are simply not the same thing, nor are they even comparable.Are you wanting to use this like a KVM system, or a remote control, or as screens in addition to the one(s) already connected to the ubuntu box?.

7. Change TimeStamp display in terminal

In the end of your /.bashrc, paste the code below:After pasting this command, save and close the file.And runsource /.bashrcNow try:ls -alYou will need source only this time, when you restart all of your gnome-terminal windows, it will always load the alias automatically.If you want to customize it by yourself just take a look at the man of date and look for FORMAT options.