i have just recieved my first road bike that i purchased off of ebay. it's a miyata 512 (i'm satisfied, for 130 bucks shipped). it is still disassembled from the shipping and i am having a few knowledgable friends from work put it together/show me how to do it. while cleaning off the rear rim (wolber gentleman gta), i noticed that there are a few hairline cracks around (maybe 4 or 5) the eyelets on the rim where the spokes meet the rim. they run parallel to the rim (hard to explain, but they run with the rim, not out or away from the eyelets) and are very small [edit: it still doesn't sound clear, but they stem from the eyelets and run towards the other eyelets, not toward the tire or outside]. one of the spokes seems to be slightly pulling the rim up on one of the cracks.
i have been able to find some to very little information about this specific issue on the internet. i called a couple lbs's and one said to not worry about it at all and one said that it may become an issue in the future, but it isn't a reason not to ride it. i was wondering what all of you knowledgable people here thought about it. i really don't want to replace the rim... but i am planning on commuting with it a lot in the near future. if anyone can give me some insight on what to do, or any advice, that would be great. [they are 700x23 if that is important]