Screen goes black, mouse freezes, caps-lock blinks!

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http://forums.opensuse.org – First off, I apologize. This is for a Fedora OS computer (I do have openSUSE on another comp.) but the fedora forums never give me a response (including this time) and these openSUSE forums are always very knowledgeable and helpful. So that said.... I keep starting up the computer and I'm not able to get far (although it's not always at the same time) before my screen will go black, except it shows the mouse/cursor - but it's frozen, and then the caps-lock light starts blinking and I can't do anything or get it to recover. It ONLY occurs after I log in to wireless network. How do I stop this and diagnose this? I've tried, in the boot-startup to choose an older kernel version, but the same thing occurs! And this was working for months and now is not. (Distributions)