Hi. I am working on an older imac at my job with OS 10.6. When I started the computer today, the screen came up to the desktop, but all the menu items in the top bar on the right are not visible, nor are any files I left on the desktop. I have a Wacom Bamboo tablet and it attempts to load an upgrade every morning, then informs me that it can't complete it. I usually just work around that. But today the desktop seems to be stuck on that part. Nothing else shows on the desktop. The dock is there and I can use the software and get online, but the icons for everything aren't there. And the stylus doesn't work. I have on icons on my desktop. I've restarted several times but it only comes up to the screensaver image. The dock is there and I can access my software, and use it, but everything on the screen is blank. Any ideas?