Blank Message - Still not solved...

(I have Windows XP SP3)
Well I read lots of posts about this blank message error and I tried these soultions:
-Rebooting the PC
-Turning off my Anti-Virus
-Deleting the GameGuard folder
-Reinstalling Crossfire
-Uinstalling Crossfire and downloading it AGAIN
-Turning off unnecessary programs in Task Manager
It turns out, I tried everything. I don't know what to do any more. Yesterday it was fine. Help me out fast please.

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