After having recently begun my etrade account and purchasing stock for my portfolio I was surprised when one jumped up to my alert point and promptly sold it to add the gain to my account. Then in seeing another I wished to buy I began to place the order only to receive a warning that this would result in a 90 day suspension. Ebay the explained that there is always a five day float time when I make deposit money from an external source and a three day period after I sell stock before I can purchase new ones. With a three day period after a sale before I can buy new stocks how can one even consider prompt sales such as I made to benefit from those times when a stock does well. How then do day traders function if there is a three day lag and 90 day penalty if one proceeds? Any best way to work around this?