hey, everytime i click play my screen turns black then i get a wow error, now my wow is saved under a jump drive but i did unplug my comp today to plug in a different computer. the wow error says "ERROR #121 (0x85100079) Version Mismatch" now ive used the repair feature, deleted my wtf folder, deleted patch 3.3.5, and deleted addons and im at a loss here, i could use some help bad