I have just reindexed the data on my Magenot installation running v1.6 and i'm now getting a message stating 

```
There was a problem with reindexing process.

```

for **Category Products** and now no products are displayed in any any of the categories. I need to fix this asap as its happened on a live site.

Does anyone have any idea what might be causing this and what the fix is?

I have tried deleting the contents on var/report and var/locks but no joy. There seems to be a few fixes but not specifically for Category Products

Thanks in advance