This bug probably won't happen if you switch to Windows 7.
Heh, not likely to get me to switch. I'm pretty fond of my Dual-boot Linux/Win XP configuration, and spend most my time under Linux, only using XP for games/apps I can't get to run in a wrapper under Linux.
But anyway, I've included the rar of the log files you requested. I also tried a few other things..
I used 'extract -r' from the xp install cd to restore the windows core fonts... it didn't help.
I installed the windows support for East Asian languages, and even tried changing the system language to see if I could get any text at all to show up in overwolf... nothing but boxes, no matter what language I selected.