Screen view adjustments

[RIC-H0]

Anyone know how to correct for screen view adjustments made. I'm using my desktop that I haven't used in a while, and remember that I had downloaded some software(Microsoft toys. The same site that lets you adjust image sizing) and it made my screen views look kinda wierd. The background is mostly white, and I cannot see alot of the normal stuff, like the tabs to respond to a discussion. I've deleted the software that I think I've downloaded, and still nothing. I've messed with all the setting that I think may have affected the imaging,resized, reconfigured, and even screamed at the screen, but nothing helps!!!

Any help would be appreciated.
Thanks,
Ric-H0