Worried it's more than a usb problem

[kj50state]

On a macbook pro 17" running 10.8.2

Trying to save to a memory stick that has been formatted as Mac OS Extended (Journaled).

I'm not able to save anything to it. I fear it's a problem with my mac as Drive Genius 3)just showed an error last week. The error went away after disk utility permissions repair, but saving to a USB still isn't possible.

The below images might help with your assessment... The same message is given regardless of item saved. I recently reformatted my usb to no avail. Before I erased it, the info for it was created in 1970 Jan. 1st. weird

 

[AppleMacFinder]

Do you have any other USB sticks? Have you tried them?

By the way, 1970 January 1st is UNIX Epoch, nothing weird. Probably the date was corrupted, and reset to defaults.

 

[kj50state]

Yes, I have tried 3 different ones. Same message for all of them. The USB's do work on other machines.

***Update***

I have borrowed another USB from a coworker. His works fine.

The 3 of mine no longer work properly on other computers. I can save to them, but after that I cannot open up the documents from them.

So... It is USB problems. Any reason why all three of mine would go bad overnight?