Odd Tab Behavior in InDesign CS5

Question

I've used CS2 for quite a few years now, but decided it was time to upgrade to CS5. Doing so in the middle of a big book layout project was PROBABLY not the best idea.
Essentially, I have laid out a document in this fashion:
The headings are set 0.0" to the left of the column
The body text is set to 0.05" from the left side of the column by using the indent marker on the left side of the tabs window. (The stacked double-arrow thing)
I have created a tab stop for paragraphs to begin at 0.15" from the left. I did this instead of a pragraph indent because I wish for the first paragraph to be flush with the left of the rest of the text.
This worked just fine under CS2, but when I open the document in CS5, the tab character mysteriously DOES NOT INDENT the text for no reason I can understand. Even more oddly, if I adjust the body text indent to another number, say, 0.0525", the tab indent miraculously works...but ONLY for the left hand column. The right hand column, even adjusted, will never show the indent.
Also, even if I set the tab stop to something ridulous, like 1", all it accomplishes is making the line of the paragraph with the tab indent really stranglely justified, like:
A           word              and            spaces
Does anyone have any idea why this is happening?
A screenshot of the issue: http://www.wiseturtle.com/InDesignTabs.gif
Thanks in advance,
Clay

Answer 1

There are occasional reports of oddities when converting legacy docs to CS5. Export from  the original version to .inx and open that in CS5, save as a new file with a new name (don't overwrite the old files -- there's no way for you to go back) and build a new Book in CS5.
As far as the indents, the correct way to handle this would be to make edit the body paragraph style to lose the tab and use a first line indent (you can use the GREP expression ^\t to find leading tabs and replace with nothing in the GREP Find/Change iin CS5), then make a second style for the first paragraph based onthe body style, but without the fisrt line indent, then sect the next style for that to the body style.