i found the theif to be boring to solo. the character didn't change enough by level for me to keep an interest. the incremental changes in thieving skills just didn't keep me going.
but that's why i loved soloing a sorcerer, every level, your character's entire range of possibilities advanced.
my name is Nael, and i am a BG2 junky. i had 800 posts in the BG2 forum before i began to spam down here in SYM territory.
I would be a serial killer if i didn't have such a strong distaste for manual labor