Work around found
Yes, removing the & from &FetchRow is exactly what worked for me. See the coments section of the bug tracker for more details:
http://dev.tikiwiki.org/tiki-view_tracker_item.php?trackerId=5&itemId=333
Norm.
> If you change &FetchRow to FetchRow in wiki/lib/adodb/adodb.inc.php the problem goes away