I wrote a reply to this once, but the computer said the connection had timed out when I tried to post it. Here goes again.
There are two ways to pick up the "bar" you mentioned. If you pick it up from the front knit it tbl, but if you pick it up from the back you will need to knit it in front. You need to twist the stitch as you knit it to close any hole, or there will be one. That could be the problem.