hi, ive recently decided to upgrade ram and have been considering other world computing's branded 1 gig stick. ive poked around past threads and have found mixed reviews. a majority said it worked perfectly, while a rather substantial group said that owc ram has problems working correctly in rev b 12" powerbooks, giving kernel panics, crashed programs, and other fun things. i want to hear the opinion of people here that have a 12 incher and have experience with owc 1 gig sticks of memory. (pc2100) also, ive noticed that the 512 and 256 sticks are labeled lowprofile, while the 1gb is not. will this pose any problems fitting into the ram slot? thanks in advance.