Available space shrinks after each reboot

Win 7 x64, ramdisk upgraded form 3.4.7 to 3.4.8 recently. Created a 128MB ram disk by using the following .xml
Now every time after a reboot, the available size of the 128MB ram disk is only 29.X MB (i forgot the exact number). I have to unmount and remount it manually so that it will become 112 MB available out of 127 MB again like before.

<?xml version="1.0" encoding="utf-8"?>
<ramdisk>
  <mount/>
  <boot>
    <item>
      <filesystem>3</filesystem>
      <folders/>
      <letter>Z</letter>
      <size>128</size>
      <image>
        <filename></filename>
      </image>
      <savetoimage>false</savetoimage>
      <removable>false</removable>
      <label>128MB-RAM-DISK</label>
      <compressed>false</compressed>
      <autoflush>false</autoflush>
      <flushtime>0</flushtime>
      <hddemulation>false</hddemulation>
      <numanode>0</numanode>
      <specnuma>true</specnuma>
    </item>
  </boot>
</ramdisk>

please help to check, much thanks.

We didn't change anything that could cause this issue. It's pretty strange, but try deleting the RAM Disk and creating a new one from scratch.

Will do, much thanks!