I upgraded the memory on my powerbook G4 (bought around April 2005) from 512MB to 1.5GB. I had heard there was a problem with wireless networks with this addition, but this was corrected in one of the software updates. I have all the updates and am running the latest updates.
However, my wireless network (to the internet) is now a little unreliable with occasional waits of a minute or two before web pages are loaded. Sometimes the internet is really fast, sometimes there's the wait.
The memory is Kingston memory, bought from an authorized Apple dealer who also installed it (but I live in a another city from them and I'm likely to go back to that city in about a week)
Thanks for any advice/help