Yeah, I guess your right.

I must say that I'm not so happy with JCL's reply, it was a bit quick & generic, but it was to be expected since this problem is A7 (not A8) related & also I'm the only one that has these issues. I have found just one other, let's say, similar post concerning the ATI, AMD, 64-bit system & Win7:

http://www.opserver.de/ubb7/ubbthreads.php?ubb=showflat&Number=250902&page=1

Anyway, as this is not recognized as a legitimate problem by JCL at the moment & I did resolve issue (for now) with the older drivers, I'll just wait for new ATI updates in a following few months & see if things pick up. If not I will try posting again, this time in the bug section.