When using IE 7 and Zoho Writer I often run in to this problem. It doesn't happen all the time but this is what's happening from time to time:

1. I'm copying a text from another Zoho Writer document or from the Web (by using CTRL+C).

 

2. When using CTRL+V to paste the text into the Writer document, i get the message of "Processing..."

 

3. After the "Processing" message the document is locked for edits and the text is not copied into the document.

 

If I close the document and tries to open it it's still locked. But closing down explorer and then re-opening the document everything is fine and i can do some cut & pasting, but then again after some time it get stucked again.