Try deleting the 1099-Rs and then enter the conversion only. Then enter the rollover and see if your tax changes. It shouldn't.
At the end of the day, you should see $210 in line 5a, because the conversion and the rollover both get listed. The taxable amount on line 5b should be $100 (the conversion). If you are using Turbotax online and using the "preview my 1040" and not printing your actual 1040, the program might be showing you the rollover label but not the $100 taxable amount for some reason.
