"Toobi-Won Kenobi" <Toobi-won Kenobi@Tatooine.com> wrote in message
news:fro4hd$dqu$1$8300dec7@news.demon.co.uk...
>
> "Kees van Surksum" <corne4851@gmail.com> wrote in message
> news:47DE58A5.8050900@gmail.com...
>> Toobi-Won Kenobi schreef:
>>>
>>> Switch off compatabilty mode (if you do not use earlier versions)and
>>> try reducing your number of History states in Preferences.
>>> Run TaskManager in performance mode in conjuction with PS and see what
>>> limits are being hit when you are working.
>>>
>> In the dialog box for these options I discovered also a slider to set the
>> use of RAM by PS. In my cas it took 55% of the available 1102 MB. With
>> TaskManager I already noticed, that loading layered psd-images took
>> already up to 500 MB of RAM thus nearing the limits of this setting. This
>> explains my "out of memory-messages" while closing down with a lot of
>> information on the clip board or while opening plug-ins like Fluid Mask
>> or Photmatix. These errors don't occur when I run Photomatix in stand
>> alone mode outside the PS-environment. That would explain a lot....
>>
>> For a start I moved up the slider to the maximum recommended amount of
>> 798 MB (appr. 70% of the RAM the system leaves free). I could move up to
>> 1102 MB because usually I don't run PS parallel to other applications.
>>
>> I will report back my experiences.
Kees,

55% memory is considered to be the optimum memory allocation for PS,
increasing the ammount past this can cause problems with the OS.
Rather than increase the allocation it is better to increase the ammount of
RAM.
Added memory idealy needs to be in matched pairs, 2 x 512, 2 x 1GB etc.,
Did you try reducing the history states in preferences?

TWK