Are you using PC or MAC? If you're using a PC please download media info and check the field order info by dragging your video file into media info. Then set it to "tree view" it will tell you if it's interlaced or progressive. This way you can check for sure which it is. Although if you know you recorded in HDV 30p it shouldn't be having any issues What type of camera did you shoot the video with?
http://download.cnet.com/MediaInfo/3000-2169_4-10413046.html
(Although media info can't properly detect most PsF footage either)
However several sony HDV camera's record 30p content as "Progressive Segmented Frame" also called PsF. A lot of times when PsF footage is imported it reads as UFF even though it's actually PsF which contains both fields of information. The way to work with this type of footage is to right click the footage inside your bin then click "modify">interpet footage> then seclect conform field order to Progressive (No Fields) then once this is done you edit in a progressive timeline. Here is a article that explains the work flow. It also shows you how to perform this workflow properly in Premiere.
http://provideocoalition.com/index.php/atepper/story/psf8217s_missing_ workflow_part_7_adobe_premiere_pro_cs5.5.x/
(Basically all the main camera makers currently sell cameras that record content as PsF so even if you didn't use a Sony camera there is a good chance your footage is PsF.)
I really recommend reading the rest of these ProVideo articles. It explains exactly why the issue occurs in depth etc. It also shows the fix for FCP too, since it can't properly read PsF either.
http://provideocoalition.com/index.php/atepper/story/psf8217s_missing_ workflow_em_part_1_benign_psf_versus_malignant_psf/
http://provideocoalition.com/index.php/atepper/story/psf8217s_missing_ workflow_part_6_tepper_asks_the_camera_manufacturers8230/
http://provideocoalition.com/index.php/atepper/story/psfs_missing_work flow_part_10_fcp_x/
When dealing with PsF the editing software see it as interlaced because it's actually progressive video stored in a interlaced stream. This type of footage causes confusion for obvious reasons.
