I regularly back up my MacPro start disk with SuprrDuper! from one 1Tb internal disk to an other exactly the same. Then I swich start up desks. My Windows is XP SP3 with 2 Gb Memory allocated. It is not possible to start Win XP with this much memory until I do an additional upgrade with the combo-upgrade MacOSXUpdCom.bo10.5.4dmg. Earlier under Max OS 10.5.3 I had to use that Combo updater. Then everything works fine til I do the next SuperDuper! Backup and swich startdisk to the new backup. There are many threads mentioning SuperDuper! in the forums but I could not find this information. Probobly I missed a relevant posting, but so might somebody else having the same problem. Cheers, Eric
Try to perform permissions repair after SuperDuper install, or start Parallels Desktop directly from Applications/Parallels
John, I performed permissions repair after SuperDuper install, and starting Parallels Desktop directly from Applications/Parallels. Neither works. The problem is not to START Parallels, the problem is to start virtualized Win XP with 2 Gb memory allocation. And it occurs only with a 2 Gb memory allocation. A 1 Gb allocation starts without a combo-upgrade. Error message: "Parallels Desktop failed to allocate the specified amount of memory. Please restart Parallels Desktop and try again. To avoid this problem in the future choose from the menu: Parallels Desktop > Preferences. On the Memory tab select the "Enable virtual memory preallocation" option" The error message generator did not notice that "Enable virtual memory preallocation" option IS selected. What is going on? A problem, a treatment but no understanding. Eric
Supported memory 1.500 MB It is mentioned in Parallels Desktop for Mac user guide from http://www.parallels.com/en/download/file/doc/Parallels_Desktop_for_Mac_User_Guide.pdf
On page 174 of Parallels Desktop for Mac User Guide, which you can download following the above link, it says: "Main Memory. The Main Memory parameter defines the amount of virtual memory (RAM) to be used by the virtual machine. You can choose any value from 4 to 2048 MB." This might be confusing if you just support 1500 MB Eric
