EXIF data not read correctly

[MDfreak]

After searching this forum I cannot find the solution for my problem:

- I installed CPG 1.3.4
- Enabled the Read-exif option
- The MySQL-table is nicely updated when I view a particular picture but the column exifData always displays "a:0:{}"

When downloading a particular picture from my website ("save picture as" from the CPG page)  and viewing the file-info in IrfanView the EXIF-info is still there. An example:

File: - F:\foto0007.jpg

Make - FUJIFILM
Model - FinePix S304
XResolution - 72
YResolution - 72
ResolutionUnit - Inch
Software - Digital Camera FinePix S304   Ver1.00
DateTime - 2005:08:12 11:03:53
WhitePoint - 0.00
PrimaryChromaticities - 0.00
YCbCrCoefficients - 0.00
YCbCrPositioning - Co-Sited
ReferenceBlackWhite - 0.00
Copyright -
ExifOffset - 398
ExposureTime - 1/160 seconds
FNumber - 4.80
ExposureProgram - Normal program
ISOSpeedRatings - 100
ExifVersion - 0220
DateTimeOriginal - 2005:08:12 11:03:53
DateTimeDigitized - 2005:08:12 11:03:53
CompressedBitsPerPixel - 1.50 (bits/pixel)
ShutterSpeedValue - 1/158 seconds
ApertureValue - F 4.76
BrightnessValue - 6.96
ExposureBiasValue - 0.00
MaxApertureValue - F 2.83
SubjectDistance - 0.00 m
MeteringMode - Multi-segment
LightSource - Auto
Flash - Not fired, compulsory flash mode
FocalLength - 6.00 mm
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 2048
ExifImageHeight - 1536
FocalPlaneXResolution - 3884.00
FocalPlaneYResolution - 3884.00
FocalPlaneResolutionUnit - Centimeter
ExposureIndex - 0.00
SensingMethod - One-chip color area sensor
FileSource - DSC - Digital still camera
SceneType - A directly photographed image

So my question: what is going wrong?