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Was your new mac a used machine or brand new? Maybe reinstalling os x would help out. Also I know I have troubles using any microsoft software on my mac, maybe try out another office program.
By the way, whats wrong with your old imac and what are you doing with it?
 
More ram, definitely. The way you expanded your system means there are more drivers, and thus, more processes running on your system, all taking up valuable space. Get 1GB in there, or more if you can afford it, and you'll notice an improvement.
One tell tale sign of ram shortage is that the HD is unusually active, as the OS is using it as additional memory.

:apple:
 
Just swap out one of the 256MB sticks for a 1GB stick.

Are you telling me that Apple still makes sure that all slots are full when you buy a mini? Considering that two 256MB DDR2-PC 5300 bars cost MORE than one 512MB bar, this seems pretty stupid. Unless, of course, they want to "animate" their customers to buy Apple RAM.
 
I kinda remember my old iMac when I increased the ram from 512 to 1gb, it seemed better. So the 2gb would probably be the way to go? Why is it so expensive? I didn't think my old iMac ram was that high:(

Oh trust me RAM is way cheaper now than it ever has been

2 Gb is about US$150 for intel Macs

512 Mb alone for an iMac G5 in Aug. 2004 was about US$110
1 Gb was US$225

So you were looking at about $450 for 2 Gb.

512 Mb SODIMM for an iMac G4 same time period was US$125

Are you telling me that Apple still makes sure that all slots are full when you buy a mini? Considering that two 256MB DDR2-PC 5300 bars cost MORE than one 512MB bar, this seems pretty stupid. Unless, of course, they want to "animate" their customers to buy Apple RAM.

No, the reason is that Apple populates their integrated video machines (shared video memory) with matched pairs for a bit more performance. The machines with dedicated Video RAM get the single chips.
 
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