tmiranda

Hi all, new 07 IS250 owner here. so far, loving the car and liking the brand. I quickly realized the navigation hadn't been updated since the car was purchased in 07 and decided to upgrade it. Bought a Gen 5 update 40 disc off the internet and upgraded the nav, seemingly without issue. I noticed it also got rid of me having to push the i agree button when the car starts - great. Except I quickly realized it wasn't great. The navigation system is now super slow. Most of the time I can't even enter an address. I'll start by entering the house number, street, but when I select the list button it hangs for several seconds (about 30 secs) and then the screen goes back to the main nav screen like it crashes. If I have an address saved or pick from my recent addresses, the nav will work fine albeit a bit laggy in some regards. Has anyone experienced this?