lately ive been playing on maplestory private servers but know when i try to open the game's my screen goes black my cursor turn to the hour glass and then it just goes back to my desktop with nothing opened or not responding(except any files or browsers i have open at the time) and the same thing happens with diablo II LOD and maple global

i used to be able to play these with a problem a few days ago virus scans show nothing and restarting does nothing

any ideas?

Sounds as if this is Graphics related
Whats happening is when the graphics card is called on there is Nothing there (driver failure?) ...or a stick of RAM (Memory) has failed?
A Good free Program for Trouble shooting Both of these Issues is SIW (System Information for Windows) which runs Displays (and Does not install) www.gtopala.com
Just click on what you wish to check on the Big list and in the Window It will tell you if there is a Fault

ok i got SIW but i dont understand how to use it at all i opened it and im not sure what to click on the list

Ok it is a bit daunting

Scroll down to Hardware then click on Memory and if you have a peek inside the tower you will see the RAM Boards in the Long black slots and there are 3 to 4 of these on most motherboards
If there are 2 then SIW will report 2 but if there is a fault SIW may report 1 Present ,and the Other Need replacing with a matching spec Board. You cannot Mix these up ( Rarely ever works) Leads to allsorts of Issues!

Graphic adapter... Move down the list until you see Devices click it and look for Display Adapters If your graphic card has failed there may be nothing listed here ,and your computer is struggling along on Integrated graphics which is Heavily reliant on The Memory Boards and as soon as a Game is started ...Blank screen! Your RAM will be reporting back as "working" if this is the issue?
Another Item that is worth investigating is your Hard drives (Virtual drive Memory) If this is set wrongly The symptoms cause Hiccups In running Programs
Only way this can Happen is if the Hard drive settings have been altered, or Its a new Hard drive? (easy fix though)

ok on the memory it says i have all 4

and the display adaptor it lists Nvidia GeForce 6800 ultra

and i got a new hard drive last december and everything worked like 2 or 3 days ago so i doubt that is it
but everything else seems fine

Ok How about a driver update for your Graphics card? Nvidia do a Universal Driver update Every month or so With Bugfixes (I Renew mine about every 6 months)
http://filehippo.com/search?q=Nvidia+GeForce
Be aware only to click on the Version which matches your Operating System,Also the download is 82 or 77 MB in size ,for the NON 64 bit versions ,So start it off go and have a coffee and it'll be ready for installation when you return
Tip: Save it as a file (in a separate folder) and you have it as a Backup

lol third times the charm thanks man

You're welcome