wrote wrong months for past internship on employment app?

I don't mean to picking on you OP but this question goes to all these background check date questions as I've been seeing a bunch of these questions as background checks begin. Why wouldn't you just get the dates right as opposed to "guessing" on the length of employment? It is so much easier, not to mention a lot less stressful, if you just put some effort in at the beginning to ensure your resume/CV is 100% correct? Or if you are filling out an application whether it be on-site at interview or onilne at home wouldn't you have the correct dates on your resume to use as a reference?

Maybe I'm alone on this one.

Agree with above, but you should be OK. I could see anyone making a genuine mistake of this sort.

As long as it isn't blatantly obvious you are fine, i extended both my internships by a month to cover the whole summer...

What would be "blatantly obvious"?

My resume said "Summer 200X" as it was a summer internship. When i was writing the app, I forgot that I did a month of summer classes during the middle of the internship (long story) as I thought that i did sumer classes a different year but was reminded correctly by a former roommate, so now i think my beginning/ending months were accurate but I didnt work for a period of six weeks in the middle (with their permission and encouragement since the courses were relevant to the field the job applied to and for my hopefully future job).

I still interned for enough weeks to qualify as a summer intern...but i probably should have wrote may-june on one line and did another entry for august..rather than 05-08/200X...

im pretty much going to be making up my apartment numbers as I have had 12 addresses in 10 yrs. They're lucky if I get the street right.

ya old addresses are always hard to find.

My first internship was with a real small HF and after the crisis the guy went back to work as a sell side research analyst. When i got my offer they conducted a background check and i had to track the guy down to prove he actually existed...they just called and asked if i worked their, its not like he remembered the exact start date of some summer analyst that did bitch work after my soph year...

it wouldnt be worth it to send an email now, right? I figure it would look worse since i filled out this application a while ago and the checking company may overlook a small date difference

Do not send an email, they will not notice

thank you everyone for your advice - i feel a little better