Is any of the PA-80 users out there encountered this?

I was trying to copy and save my style to the HD banks and got sort of a problem. Here's what I did:

1. Select a style
2. Press "DISK" button and select save
3. Open the "!123" folder, navigate U1 and press ENTER
4. When prompt, I pressed ENTER again to save
*** At this time, the HD light came on and stays lit. I can go on and play any style I can, but I cannot do any modification to this one. I couldn't use the MENU button to change effect, etc. And the only way to access the drive again is to switch power off and on again.

Can someone also verify this? I am using OS3.01 (the latest?)

Thanks.
..rb