Virtuemart category layout problem after helix III update

Hi,

After updating to latest Helix III our category view in VM shows only one product per row and does not respond to any VM config change.

We did the following to try and pin-point the problem:

1. Changed the template default to protostar and everything works fine (regarding products in a row).
2. Renamed com_virtuemart in helix html folder to check if any of our overrides caused this but no change.
3. Turned on Compress css in helix Template settings and category view works (the rest of our css does not)
4. altered VM css using the following:
   div.product {
   max-width: 33%;
   }
   which does show 3 products in a row but is a temporary remedy since it does not allow for VM template config settings to be used (if we select 4 products in a row from within VM config we get 3 in a row and one below them).

Any help will be greatly appreciated.

Thanks!