PHP memory?
When I tried to change my theme's color I found this warning:
"There is not enough memory available to PHP to change this theme's color scheme. You need at least 144.38 KB more. Check the PHP documentation for more information.PHP memory?"
And when I tried to change my logo I see this warning:
* warning: move_uploaded_file(C:\xampp\tmp/tugu.gif) [function.move-uploaded-file]: failed to open stream: No such file or directory in /home/jogjaf/public_html/includes/file.inc on line 572.
* warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/tmp/phpZmftLy' to 'C:\xampp\tmp/tugu.gif' in /home/jogjaf/public_html/includes/file.inc on line 572.
* File upload error. Could not move uploaded file.
* The settings have not been saved because of the errors.
I have tried both of this change at localhost & I found no problem, this error found when I change my online version's setting.
What it is? And what should I do?
Thanks 4 your help.

For the memory problem,
For the memory problem, there are 3 different ways to increase it:
http://drupal.org/node/207036
It is possible that the other problems are a result of the first one, but if they still occur, you need to do some more diagnosis.
- Check your files path and your temp path in the /admin/settings/file-system page.
- See if those directories exist on the disk or not.
- Check their permissions to see if the web server is allowed to write in them.
- Check if the image file was uploaded to the temp directory or was not uploaded at all.