I knew it,I already dislike it for not running Jump,and now this. ._.
The weird thing is that it says not only my HeartGold save is corrupted,but my Soulsilver and Platinum ones as well.
And it doesn't matter what save I try to insert in the R4(even if I just downloaded it from internet),it will be stated as corrupted.
I'm almost sure that saves are O.k. and it's R4 that got bugged,or anythink like that.
Oh,and thanks for the elucidation.
P.s. - Oh,I'm from Brazil,so I guess that would be a bit unpleasant for me to buy an Acekard from the site you indicated me.Thanks anyway,but I'll search for a good store in my own country,heh.