I have a MB Pro with 1 GB or RAM, in the last release my XP was set to use 448 MB of RAM and ran well, after the upgrade I got an error to lower the RAM to 220 MB for best performance. when I did that, I could no longer raise the RAM without getting "The memory size specified(320 MB) exceeds the recommended maximum of 220 MB. You must reduce the memory size otherwise you will not be able to start the virtual engine." This makes installing Vista impossible as it won't load in less than 256 MB, I just tried. Coherence was available in the older version and everything worked properly, how do I get Parallels to use half of my RAM? I have rebooted, have nothing open. I only have 162 MB of wired RAM yet I have the 220 MB limit. In comparision, I loaded a VMware demo and it allows me to use 768 MB of RAM currently if I wanted so I know the RAM is available and functioning. This is a licensed Parallels copy and the only issue I have ever had with it. thanks, my copy of vista is on the shelf til this gets resolved.
Please select in Menu Parallels Desktop-> Preferences-> Memory and turn of Adjust reserved memory - Automatically Select Manually and choose the size of RAM you want.