RU 5.16.0248 Beta

The previous version 5.15.0244 has several bugs, thanks for Gary reporting many bugs.  I hope this version can fix all the problems.

1. Fix ACPI table with length 0 still shows valid table.  It is now shown as checksum bad.
2. Fix ACPI register info (ALT-L) does not show all of them for the first time.
3. Fix system hangs switching between ACPI and SPD.
4. Fix PgUp and CTRL-PgUp is not working.

Again, I haven't done many tests.  Please report bug to me by leaving comments here.  I will try to fix it ASAP.

Download RU5.16.0248
Password: 168571019102231