Hiya, just installed a wacom tablet, an intuos3, and I'm having problems when I draw a line, it's invisible until I lift my pen up, I also noticed this is the same when I tried using a mouse as well.

It's rather annoying not been able to see what I'm drawing, so could anyone possibly help with this problem?

I'm using am also using an imac. If that helps.

I have this problem too..i can see the line for a short while then I am drawing blind:/
I have heard this is either a RAM problem or an ISketch glitch...don't know which is correct. The only thing I can suggest which SOMETIMES helps is to waste a stroke in white first...then draw as normal. It's kinda hit and miss though :/

Well, this is a new iMac that was bought a couple of days ago, which has 4 GBs of ram, so I shouldn't think it'd be that.

This isn't with just the first stroke, it's all the strokes. Every line I draw is invisible til I release the mouse click or pen.

Hi Stoke, that has happened to me too, looks like there is an issue with Adobe's Shockwave and 64bit Macs. To solve it I run Safari (or the browser you're using) in 32 bit mode.
Another option is to use a browser that is not 64 bit for Mac, such as Firefox. Hope this solves it.


Instructions to run Safari in 32bit from eHow.com

Go find Safari in your dock. Click the icon and hold it. You will see a menu pop up. Select "Options" and then "Show in Finder."


1
If you do not have a Safari shortcut on your dock, go to your "Applications" folder and find Safari there.
2
Right click on the Safari icon. If you are using a mouse that does not have two buttons, hold the "Command" key while you are clicking. If you are using a newer MacBook or MacBook Pro with the Multi-Touch Trackpad, you can alternatively click the icon using two fingers. Click "Get Info."
3
In the menu that pops up, click the "General" tab section to expand it (if it hasn't been expanded already). You can tell if it is expanded by the arrow next to "General." If it is pointing down, it has been expanded.

Go look for a check box saying "Open in 32-bit mode." Check it and then run Safari. You are now in 32-bit mode.

This worked. Thank you.

I use firefox, and still have this problem from time to time so..:/